Power translating device



June 7, 1938. Mc| COLE 2,120,126

POWER TRANSLATING DEVICE Filed Feb. 15, 195'! INVENTOR.

Patented June 7, 1938 2,120,126

UNITED STATES PATENT QFFlCE POWER TRANSLATING DEVECE Gerard McL. Cole, Chicago, IlL, asslgnor of one-halt to Charles E. Humes, Chicago, 11].

Application February R5, 1937, Scriai No. 1255M 6 Claims. (Cl. 175-365) My invention relates to power units and is par- I will further describe the preferred form of ticularly adapted for use as a power translating my invention by reference to the accompanying device for electrical shavers and other devices of drawing, wherein l is a side elevation; Fig. 3 a similar nature. is a section substantially on the line 2-2 Fig.

The purpose oi my invention is to fill a need, l; and Fig. 3 is a wiring diagram of my invenspecifically for illustration 8. need which has tion. grown out of the increasingly common use, for Referring now in detail to the emlzodiment sepersonal shaving purposes, of the electricai looted to illustrate'my invention, I show a casshaver, over a million of which, of one make ing in p r r l to r v the receptacle alone, are now in daily service. A weakness of her ii and the switching device it which, as

the electrical shaver, and a serious disadvantage, shown, are secured to the casing 49 in a suitab is that a proper current supply must be readily manner. The casing is further apertured to ad- I at hand, or it is useless. Up to the present time mit the power supply cord E4, to which is atit has not been commercially possible to build an tached the p s med 0 the switching 15 electrical shaver which will operate on more than vice i2 is a knob 83 for actuating said switching one voltage. device.

The ordinary electrical shaver is designed to The interrupter unit i5 (as shown c e y operate on the 110 volt house current coni- Fig. 3) equipp t lih al p gs all 0116 6nd,

inonly supplied in metropolitan areas. When the plugs into socket member ii, and can therefore user travels, or spends any time away from the be easily removed or replaced. The socket memcity, he is obliged to use an ordinary razor which ber 97 is Secured t0 base plate by the bracket is noticeably difficult when the face has become 98. The resistor 55 limits the current in the accustomed to dry shaving. Electric current, tuating mechanism of the interrupter when the it is true, is nearly always at hand, but not of the device is used on a supply S01E08 e Voltage of proper voltage for the shaver. An object of my which is higher than that on which the interinvention is to make every common source of rupter is designed to operate normally. This reelectric current available for use with an electric sister is substantially short clrcuited by the shaver regardless of the voltage for which the switching device i2 when it is not required. shaver is designed, and such other objects, ad- The transformer consists of suitable windings vantages and capabilities as are inherently posindicated generally at 20 and El, and a core 22.

sessed by my invention. The core consists oi laminaticns which are sub- Among the common sources of current not usstantially rectangular in shape, with a web porable in an electrical shaver designed for the comtion on which the windings and 2! are Wou mon 110 volt current, but which can be converted I prefer to o d the a at s in Position y 5 by my invention to the proper voltage for use the clamps indicated by the numeral 23. These with such a shaver, are automobiles, watercraft clamps d the laminations snugly and are and ships, airplanes, dry batteries, farm lightcured in a suitable manner to the base plate 2 log systems and Pullman cars, as well as certain However, other methods of clamping or securing metropolitan or suburban areas not supplied with these laminations may be e l li Without 40 he usual type of current. My invention further viating from the spirit of my invention.

meets the test of practicability in that it is small, Referring now to Fig. one side of the power light, easily portable, decorative and marketable source is connected, through the plug l5 and the at a price commensurate with use in connection supply cord 54, to the center of the primary coil with a personal shaving device. 23, to one of the poles or the switching device i2, In carrying out my invention I employ an inand to the resistor E3. The two end terminals terrupter for producing a pulsating current from and the intermediate terminals of the primary a direct current source, a transformer with pricoil connect to other poles of the switching demary winding tapped to accommodate a multivice, substantially as shown. plicity of input voltages, a resistor or other means Further poles of the switching device are conof limiting the flow of current through the actunected to the resistor 59 and the interrupter l6.

atlng coil of the interrupter, a switch for di- The pulsating reed of the interrupter is connectrecting the input current through the proper clred to the second wire of the supply cord [4. cults as required, all being enclosed ina. decorative The secondary winding 21 of the transformer case and provided with a suitable means for inhas its opposing ends connected to the terminals trodu'cing and 0.. resting electric power. of the receptacle member H.

Pill

Referring further to Figs. 2 and 3, when power is applied to the plug it? the interrupter alternately makes and breaks contact, allowing a pulsating current to flow in. the primary winding of the transformer. lated in the secondary winding to a voltage sui able for operating electric shavers, and delivered to the receptacle member it where it is readily accessible.

The tapped transiormehprimary, in conjunction with the switching device it and limiting resistor ill, allows selection oi 'any one 02 a multiplicity or input voltages, while maintaining output voltage of the desired value. It will be understood by those skilled in the art that whereas the diagram of 3 shows an arrangement to accommodate either of two input voltages, this arrangement may be expanded, through the use of additional taps on the transformer primary, in conjunction. with additional poles on the switch iii, to accommodate a larger number of input voltages. It will be further understood that the limiting resistor i9 maybe eliminated by employing a tapped actuating coil to; properly connected to the switch i2. This construction, however, may be less desirable than the preferred form shown in Fig. 3.

The device described is operated by adjusting the switch iii to the position required by the input voltage available, connecting the device to that voltage through the cord and plug, M and i respectively, and connecting the electric shaver, through the cord and plug provided with such shavers, to the device at the receptacle ii.

From the above description the construction and operation of this device will be clear to those skilled in the art, and its advantages readily apparent.

While I have shown herein a preferred form of my invention I wish it understood that the some is susceptible of modification and change without departing from the spirit of my invention.

Having thus described my invention, I claim:

1. In a device of the character described for use with an electric source of supply, the comblnation of an interrupter, a transformer hav ing a tapped primary winding and a secondary winding, a resistor, a multi-pole', multi-thro'w switch, two of the movable poles of said switch being connected to the stationary contacts of said interrupter, a. pair of stationary poles of said switch adapted to be contacted simultaneously by said movable poles, said stationary poles being connected to the low voltage portion of the primary of said transformer, another pair of stationary poles of said switch also adapted to beswitch when the switch is in the position so that the two movable poles said switch are-com nected with the low voltage portion of the pri mary oi. said transformer, and render said resistor inoperative, I

2. In a device of the character described for use with an electric source of supply, the com bination of an interrupter, a transformer having a tapped winding, a portion of said winding current is then transpole adapted to be contacted bi third movarouses being the primary, and the total winding being the secondary, a resistor, a multl pole, multithrow switch, two oi the movable poles oi said switch being connected to the stationary contacts of said. interrupter, a pair of stationary poles of said switch adapted to be contacted simultaneously by movable poles, said statlonary poles being connected to the low voltage portion of the primary of said transformer, another pair of stationary poles of switch also adapted to be contacted simultaneously by said movable poles, said other pair of stationary poles being connected to the high voltage portion of the primary of said transformer, a third movable pole of said switch connected to one side of said resistor, said resistor being in series with the actuating coil or said interrupter, the other side of said resistor connected to .9, third stationary pole oi said switch, said third stationary able pole of said switch when the switch the position so that the two movable poles or switch are connected with the low vo "e portion or" the primary oi said transformer, and render said resistor inoperative.

3. In a device of the character described forv use with an electric source or supply, the combination of an interrupter having a tapped actuating coil, a transformer having a tapped primary winding and a secondary winding, a multipoie,'multi-throw switch, two of the movable poles of said switch being connected to the stationary contacts of said interrupter, a pair of stationary poles or said switch adapted to be contacted simultaneously with said movable poles, said stationary poles being connected to the low voltage portion of the primary 0! said transformer, another pair of stationary poles of said switch also adapted to be contacted simultaneously by said movable poles, said other pair or stationary poles being connected across the total primary of said transformer, a third movable pole of said switch being connected to one side of the source, a fifth stationary pole of said switch, said fifth stationary pole connected to the low voltage tap oi said actuating coil, said fifth stationary pole adapted to becontacted by said third movable pole of said switch when the switch is in the position so that the two movable poles of said switch are connected with the low voltage portion of the primary of said transformer, a sixth stationary pole of said switch, said sixth stationary pole connected to the high voltage tap or said actuating coil, said sixth stationary pole adapted to be contacted by said third movable pole of said switch when the switch is in the position so that the two movable poles of said switch are connected across the total primary of said transiormer.

4. In a device of the character described for use with an electric source of supply, the combination of an interrupter having a. tapped actusting coil, a transformer having a tapped winding, a portion of said winding being the primary, the total winding being the secondary, a multipoie, multi-throw switch, two of the movable poles of said switch being connected to the sta ticuary contacts of said interrupter, a pair of stationary poles of said switch adapted to be contacted simultaneously with said movable poles, said stationary poles being connected to the low voltage portion oi the primary of said transformer, another pair of stationary poles oi said switch also adopted to be contacted simultaneously by said movablepoles, said other pair of stationary poles being connected to the high voltage portion of the primary of said transformer, a third movable pole of said switch being connected to one side of the electric source, a fifth stationary pole of said switch, said filth stationary pole connected to the low voltage tap of said actuating coil, said fifth stationary pole adapted to be contacted by said third movable pole of said switch when the switch is in the position so that the two movable poles of said switch are connected with the low voltage portion of the primary of said transformer, a sixth stationary pole of said switch, said sixth stationary pole connected to the high voltage tap of said actuating coil, said sixth stationary pole adapted to be contacted by said third movable pole of said switch when the switch is in the position so that the two movable poles of said switch are connected to the high voltage portion 0! the primary of said transformer.

5. In a device of the character described for use with a direct current source of supply, the combination of a circuit interrupter, a transformer having a tapped in-put winding, a multipole, double-throw switch so arranged as to connect said circuit interrupter across either a portion of or all of the input winding of said transformer, a resistor so connected in series with the actuating coil of said circuit interrupter and to said switch that said resistor will be rendered inoperative when said switch is in the position which connects said circuit interrupter across a portion of the input-winding of said trans former.

6. In a device of the character described for use with a direct current source of supply, the combination of a circuit interrupter, a transformer having a tapped input winding and a secondary winding, a multi-pole, double-throw switch so arranged as to connect said circuit interrupter across either a portion of, or all of the input winding of said transformer, a resistor so connected in series with the actuating coil of said circuit interrupter and to said switch that said resistor will be rendered inoperative when said switch is in the position which connects said circuit interrupter across a portion of the input winding of said transformer.

GERARD MCL. COLE. 

